Container closure



June 11, 1935. R WlLLlAMS 2,004,844

CONTAINER CLOSURE Filed May 17, 1954 ATTORNEY Patented June 11, 1935 UNITED STATES PATENT OFFICE 2 Claims.

The invention relates to a container closure and more especially to a collapsible tube closure cap.

The primary object of the invention is the provision of a cap of this character, wherein the same is of a construction to telescopically fit upon the discharge end of a container and to control a valve regulating the dispensing of the contents of the container, the cap confining therein a resilient body which permits of the opening of the valve and the automatic closing of the same.

Another object of the invention is the provision of a closure cap of this character, wherein the fitting thereof with the discharge end of the collapsible tube and the arrangement of the resilient medium and the valve stem for the operation of the valve to control the dispensing of the contents of the tube is novel, as there can be no leakage at the point of clearance for the stem of the valve and also there can be no lateral shifting or displacement of the cap when being operated for dispensing purposes.

A further object of the invention is the provision of a closure cap of this character which is extremely simple in construction, thoroughly reliable and efiicient in its operation, strong, durable, and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described in detail, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a side elevation of a collapsible tube showing the closure cap constructed in accordance with the invention applied thereto.

Figure 2 is an elevation partly in section.

Figure 3 is an elevation showing the tube inverted and partly in section for the dispensing of contents of said tube, the hand of a user being shown diagrammatically by section lines to illustrate the manner of compressing the cap for the opening of the valve.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, 5 designates generally the collapsible tube of conventional form for paste contents or of semi-solid kind and this tube, at its delivery end, is reduced to provide a neck 6, the same being solid except that there is provided a lateral discharge passage 1 opening at its inner end centrally of said tube and through this passage is dispensed the contents of the tube.

The other end of the tube 5 is formed with a lapped joint 8 which permanently closes said end, this end being normally open for introducing contents into the tube.

Slidably fitted or telescoped over the neck 6 is an inverted cup-shaped cap 9, the same being adapted to snugly embrace said neck 6, and within said cap is a rubber block or disk In of the desired thickness and of a diameter alike to the internal diameter of the cap, the block or disk being seated upon the neck 6.

Engageable with the inner end of the passage 1 is a substantially cone-shaped valve H, the stem 12 of which extends through a suitable clearance in the neck 6 and is made fast to the caps at its center, the block or disk l0 being in surrounding relation to said stem and on pressing the said'cap' 9, as is illustrated in Figure 3 of the drawing, the block or disk it will yield to permit of the displacement or opening of the valve H from the inner end of the passage 1 and thus when the tube 5 is inverted and pressed, the contents of said tube will be dispensed through saidpassage I for consumption.

When pressure is relieved from the cap 9 the resilient block or disk l0 becomes active to move the cap outwardly upon the neck 6 and-thus drawing the valve l I against the inner end of the passage 1 and seating the same to close said passage.

It will be apparent that the block or disk I 0 will seal the clearance for the valve stem I2 and also that the cap in its telescopic sliding engagement upon the neck 6 will be prevented from lateral displacement soas to eliminate the possibility of the distorting or bending of the stem l2 and thus assuring free action of the valve H.

In Figure 2 of the drawing the valve l I is shown closed so that the contents cannot flow from the tube 5, and in Figure 3 the valve l l is shown open and the contents flowing from the tube for the dispensing of such contents. The tube 5 is gradually collapsed for the delivery of the contents through the passage 1 when open, according to the requirements for the use of the contents.

What is claimed is:

l. The combination of a collapsible tube having a reduced solid neck provided with a lateral discharge opening leading to contents of said tube, a cap snugly telescoped upon the reduced end of the tube and slidable thereon, a resilient filler between thereduced end and said cap and enveloped by the latter, and a valve closing the inner end of the opening and having a stem Working through the reduced end and filler and secured to said cap.

2. The combination of a neck. of a container 5 having a. lateral discharge opening," a cap slidably fitted upon said neck, a. valve controlling said discharge opening and having a stem fixed to the cap, and a disk-like resilient member inteiriorly fitting the cap, encircling said stem and engaged with said neck and normally holding the valve in closed position.

MARION R. WILLIAMS. 

